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Introduction: Tobacco consumption is a serious health hazard and most important avoidable cause of death worldwide. Tobacco is recognized as lethal toxin, ripping off 7-11 minutes of human life with each cigarette through harmful compounds and inducing free radical synthesis and a high rate of lipid peroxidation. These free radicals are scavenged by the endogenous antioxidants viz. S. Glutathione (S.GSH) and S.αLipoic acid (S. α-LA), thus preventing the endothelial damage. Aim: The present study was designed with an aim to find out the lipid peroxidative stress through S. Malondialdehyde (S.MDA) and its correlation with antioxidant levels like S. Glutathione (S. GSH) and S. α- Lipoic acid (S. α- LA) among tobacco users (in both smokers and chewers). Materials and Methods: A case control cross-sectional study was carried out in the Department of Physiology among 200 subjects; aged 18-50 years of both sexes which were chosen randomly from institutional campus and healthy volunteers. The subjects were broadly divided into two groups (A & B); group A comprised of tobacco users (n=150) with history of smoking cigarette/biddies and chewing tobacco daily, for at least one year and group B had controls (non tobacco users) (n=50). S. MDA, S.GSH and S. α-LA levels were estimated by standardized methods. The data was analysed by unpaired student t-test and Pearson’s correlation coefficient (r) for finding the correlation between antioxidants and S.MDA in group-A and group-B. Results: The present study reports the significantly higher (p